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7FileSplit (Hadoop 0.20.1 API)
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79  SUMMARY:&nbsp;NESTED&nbsp;|&nbsp;FIELD&nbsp;|&nbsp;<A HREF="#constructor_summary">CONSTR</A>&nbsp;|&nbsp;<A HREF="#method_summary">METHOD</A></FONT></TD>
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91org.apache.hadoop.mapred</FONT>
92<BR>
93Class FileSplit</H2>
94<PRE>
95<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A>
96  <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../org/apache/hadoop/mapreduce/InputSplit.html" title="class in org.apache.hadoop.mapreduce">org.apache.hadoop.mapreduce.InputSplit</A>
97      <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.hadoop.mapred.FileSplit</B>
98</PRE>
99<DL>
100<DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>, <A HREF="../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred">InputSplit</A></DD>
101</DL>
102<HR>
103<B>Deprecated.</B>&nbsp;<I>Use <A HREF="../../../../org/apache/hadoop/mapreduce/lib/input/FileSplit.html" title="class in org.apache.hadoop.mapreduce.lib.input"><CODE>FileSplit</CODE></A>
104  instead.</I>
105<P>
106<DL>
107<DT><PRE><FONT SIZE="-1"><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</A>
108</FONT>public class <B>FileSplit</B><DT>extends <A HREF="../../../../org/apache/hadoop/mapreduce/InputSplit.html" title="class in org.apache.hadoop.mapreduce">InputSplit</A><DT>implements <A HREF="../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred">InputSplit</A></DL>
109</PRE>
110
111<P>
112A section of an input file.  Returned by <A HREF="../../../../org/apache/hadoop/mapred/InputFormat.html#getSplits(org.apache.hadoop.mapred.JobConf, int)"><CODE>InputFormat.getSplits(JobConf, int)</CODE></A> and passed to
113 <A HREF="../../../../org/apache/hadoop/mapred/InputFormat.html#getRecordReader(org.apache.hadoop.mapred.InputSplit, org.apache.hadoop.mapred.JobConf, org.apache.hadoop.mapred.Reporter)"><CODE>InputFormat.getRecordReader(InputSplit,JobConf,Reporter)</CODE></A>.
114<P>
115
116<P>
117<HR>
118
119<P>
120
121<!-- ======== CONSTRUCTOR SUMMARY ======== -->
122
123<A NAME="constructor_summary"><!-- --></A>
124<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
125<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
126<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
127<B>Constructor Summary</B></FONT></TH>
128</TR>
129<TR BGCOLOR="white" CLASS="TableRowColor">
130<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/FileSplit.html#FileSplit(org.apache.hadoop.fs.Path, long, long, org.apache.hadoop.mapred.JobConf)">FileSplit</A></B>(<A HREF="../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A>&nbsp;file,
131          long&nbsp;start,
132          long&nbsp;length,
133          <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A>&nbsp;conf)</CODE>
134
135<BR>
136&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;<I></I>&nbsp;</TD>
137</TR>
138<TR BGCOLOR="white" CLASS="TableRowColor">
139<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/FileSplit.html#FileSplit(org.apache.hadoop.fs.Path, long, long, java.lang.String[])">FileSplit</A></B>(<A HREF="../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A>&nbsp;file,
140          long&nbsp;start,
141          long&nbsp;length,
142          <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>[]&nbsp;hosts)</CODE>
143
144<BR>
145&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;Constructs a split with host information</TD>
146</TR>
147</TABLE>
148&nbsp;
149<!-- ========== METHOD SUMMARY =========== -->
150
151<A NAME="method_summary"><!-- --></A>
152<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
153<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
154<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
155<B>Method Summary</B></FONT></TH>
156</TR>
157<TR BGCOLOR="white" CLASS="TableRowColor">
158<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
159<CODE>&nbsp;long</CODE></FONT></TD>
160<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/FileSplit.html#getLength()">getLength</A></B>()</CODE>
161
162<BR>
163&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;The number of bytes in the file to process.</TD>
164</TR>
165<TR BGCOLOR="white" CLASS="TableRowColor">
166<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
167<CODE>&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>[]</CODE></FONT></TD>
168<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/FileSplit.html#getLocations()">getLocations</A></B>()</CODE>
169
170<BR>
171&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;Get the list of nodes by name where the data for the split would be local.</TD>
172</TR>
173<TR BGCOLOR="white" CLASS="TableRowColor">
174<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
175<CODE>&nbsp;<A HREF="../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A></CODE></FONT></TD>
176<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/FileSplit.html#getPath()">getPath</A></B>()</CODE>
177
178<BR>
179&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;The file containing this split's data.</TD>
180</TR>
181<TR BGCOLOR="white" CLASS="TableRowColor">
182<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
183<CODE>&nbsp;long</CODE></FONT></TD>
184<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/FileSplit.html#getStart()">getStart</A></B>()</CODE>
185
186<BR>
187&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;The position of the first byte in the file to process.</TD>
188</TR>
189<TR BGCOLOR="white" CLASS="TableRowColor">
190<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
191<CODE>&nbsp;void</CODE></FONT></TD>
192<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/FileSplit.html#readFields(java.io.DataInput)">readFields</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</A>&nbsp;in)</CODE>
193
194<BR>
195&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;Deserialize the fields of this object from <code>in</code>.</TD>
196</TR>
197<TR BGCOLOR="white" CLASS="TableRowColor">
198<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
199<CODE>&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
200<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/FileSplit.html#toString()">toString</A></B>()</CODE>
201
202<BR>
203&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;&nbsp;</TD>
204</TR>
205<TR BGCOLOR="white" CLASS="TableRowColor">
206<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
207<CODE>&nbsp;void</CODE></FONT></TD>
208<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/FileSplit.html#write(java.io.DataOutput)">write</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/io/DataOutput.html?is-external=true" title="class or interface in java.io">DataOutput</A>&nbsp;out)</CODE>
209
210<BR>
211&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;Serialize the fields of this object to <code>out</code>.</TD>
212</TR>
213</TABLE>
214&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
215<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
216<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
217<TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></B></TH>
218</TR>
219<TR BGCOLOR="white" CLASS="TableRowColor">
220<TD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD>
221</TR>
222</TABLE>
223&nbsp;
224<P>
225
226<!-- ========= CONSTRUCTOR DETAIL ======== -->
227
228<A NAME="constructor_detail"><!-- --></A>
229<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
230<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
231<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
232<B>Constructor Detail</B></FONT></TH>
233</TR>
234</TABLE>
235
236<A NAME="FileSplit(org.apache.hadoop.fs.Path, long, long, org.apache.hadoop.mapred.JobConf)"><!-- --></A><H3>
237FileSplit</H3>
238<PRE>
239<FONT SIZE="-1"><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</A>
240</FONT>public <B>FileSplit</B>(<A HREF="../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A>&nbsp;file,
241                            long&nbsp;start,
242                            long&nbsp;length,
243                            <A HREF="../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A>&nbsp;conf)</PRE>
244<DL>
245<DD><B>Deprecated.</B>&nbsp;<I></I>
246<P>
247<DD>Constructs a split.
248<P>
249<DL>
250<DT><B>Parameters:</B><DD><CODE>file</CODE> - the file name<DD><CODE>start</CODE> - the position of the first byte in the file to process<DD><CODE>length</CODE> - the number of bytes in the file to process</DL>
251</DL>
252<HR>
253
254<A NAME="FileSplit(org.apache.hadoop.fs.Path, long, long, java.lang.String[])"><!-- --></A><H3>
255FileSplit</H3>
256<PRE>
257public <B>FileSplit</B>(<A HREF="../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A>&nbsp;file,
258                 long&nbsp;start,
259                 long&nbsp;length,
260                 <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>[]&nbsp;hosts)</PRE>
261<DL>
262<DD><B>Deprecated.</B>&nbsp;<DD>Constructs a split with host information
263<P>
264<DL>
265<DT><B>Parameters:</B><DD><CODE>file</CODE> - the file name<DD><CODE>start</CODE> - the position of the first byte in the file to process<DD><CODE>length</CODE> - the number of bytes in the file to process<DD><CODE>hosts</CODE> - the list of hosts containing the block, possibly null</DL>
266</DL>
267
268<!-- ============ METHOD DETAIL ========== -->
269
270<A NAME="method_detail"><!-- --></A>
271<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
272<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
273<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
274<B>Method Detail</B></FONT></TH>
275</TR>
276</TABLE>
277
278<A NAME="getPath()"><!-- --></A><H3>
279getPath</H3>
280<PRE>
281public <A HREF="../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A> <B>getPath</B>()</PRE>
282<DL>
283<DD><B>Deprecated.</B>&nbsp;<DD>The file containing this split's data.
284<P>
285<DD><DL>
286</DL>
287</DD>
288<DD><DL>
289</DL>
290</DD>
291</DL>
292<HR>
293
294<A NAME="getStart()"><!-- --></A><H3>
295getStart</H3>
296<PRE>
297public long <B>getStart</B>()</PRE>
298<DL>
299<DD><B>Deprecated.</B>&nbsp;<DD>The position of the first byte in the file to process.
300<P>
301<DD><DL>
302</DL>
303</DD>
304<DD><DL>
305</DL>
306</DD>
307</DL>
308<HR>
309
310<A NAME="getLength()"><!-- --></A><H3>
311getLength</H3>
312<PRE>
313public long <B>getLength</B>()</PRE>
314<DL>
315<DD><B>Deprecated.</B>&nbsp;<DD>The number of bytes in the file to process.
316<P>
317<DD><DL>
318<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapred/InputSplit.html#getLength()">getLength</A></CODE> in interface <CODE><A HREF="../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred">InputSplit</A></CODE><DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapreduce/InputSplit.html#getLength()">getLength</A></CODE> in class <CODE><A HREF="../../../../org/apache/hadoop/mapreduce/InputSplit.html" title="class in org.apache.hadoop.mapreduce">InputSplit</A></CODE></DL>
319</DD>
320<DD><DL>
321
322<DT><B>Returns:</B><DD>the number of bytes in the split</DL>
323</DD>
324</DL>
325<HR>
326
327<A NAME="toString()"><!-- --></A><H3>
328toString</H3>
329<PRE>
330public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>toString</B>()</PRE>
331<DL>
332<DD><B>Deprecated.</B>&nbsp;<DD><DL>
333<DT><B>Overrides:</B><DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</A></CODE> in class <CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></CODE></DL>
334</DD>
335<DD><DL>
336</DL>
337</DD>
338</DL>
339<HR>
340
341<A NAME="write(java.io.DataOutput)"><!-- --></A><H3>
342write</H3>
343<PRE>
344public void <B>write</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/io/DataOutput.html?is-external=true" title="class or interface in java.io">DataOutput</A>&nbsp;out)
345           throws <A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
346<DL>
347<DD><B>Deprecated.</B>&nbsp;<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/apache/hadoop/io/Writable.html#write(java.io.DataOutput)">Writable</A></CODE></B></DD>
348<DD>Serialize the fields of this object to <code>out</code>.
349<P>
350<DD><DL>
351<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/io/Writable.html#write(java.io.DataOutput)">write</A></CODE> in interface <CODE><A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A></CODE></DL>
352</DD>
353<DD><DL>
354<DT><B>Parameters:</B><DD><CODE>out</CODE> - <code>DataOuput</code> to serialize this object into.
355<DT><B>Throws:</B>
356<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL>
357</DD>
358</DL>
359<HR>
360
361<A NAME="readFields(java.io.DataInput)"><!-- --></A><H3>
362readFields</H3>
363<PRE>
364public void <B>readFields</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</A>&nbsp;in)
365                throws <A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
366<DL>
367<DD><B>Deprecated.</B>&nbsp;<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/apache/hadoop/io/Writable.html#readFields(java.io.DataInput)">Writable</A></CODE></B></DD>
368<DD>Deserialize the fields of this object from <code>in</code>. 
369 
370 <p>For efficiency, implementations should attempt to re-use storage in the
371 existing object where possible.</p>
372<P>
373<DD><DL>
374<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/io/Writable.html#readFields(java.io.DataInput)">readFields</A></CODE> in interface <CODE><A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A></CODE></DL>
375</DD>
376<DD><DL>
377<DT><B>Parameters:</B><DD><CODE>in</CODE> - <code>DataInput</code> to deseriablize this object from.
378<DT><B>Throws:</B>
379<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL>
380</DD>
381</DL>
382<HR>
383
384<A NAME="getLocations()"><!-- --></A><H3>
385getLocations</H3>
386<PRE>
387public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>[] <B>getLocations</B>()
388                      throws <A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
389<DL>
390<DD><B>Deprecated.</B>&nbsp;<DD><B>Description copied from class: <CODE><A HREF="../../../../org/apache/hadoop/mapreduce/InputSplit.html#getLocations()">InputSplit</A></CODE></B></DD>
391<DD>Get the list of nodes by name where the data for the split would be local.
392 The locations do not need to be serialized.
393<P>
394<DD><DL>
395<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapred/InputSplit.html#getLocations()">getLocations</A></CODE> in interface <CODE><A HREF="../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred">InputSplit</A></CODE><DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapreduce/InputSplit.html#getLocations()">getLocations</A></CODE> in class <CODE><A HREF="../../../../org/apache/hadoop/mapreduce/InputSplit.html" title="class in org.apache.hadoop.mapreduce">InputSplit</A></CODE></DL>
396</DD>
397<DD><DL>
398
399<DT><B>Returns:</B><DD>a new array of the node nodes.
400<DT><B>Throws:</B>
401<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL>
402</DD>
403</DL>
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